package org.example.shoppingBrowser.common;

import com.baomidou.mybatisplus.extension.api.R;
import lombok.extern.slf4j.Slf4j;
import org.apache.poi.ss.formula.functions.T;
import org.example.vo.Result;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

/**
 * 全局异常处理
 */
@ControllerAdvice(annotations = {RestController.class, Controller.class})
@ResponseBody
@Slf4j
public class GlobalExceptionHandler {
    /**
     * 异常处理方法
     * @param ex
     * @return
     */
    @ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public Result<?> exceptionHandler(SQLIntegrityConstraintViolationException ex){
        log.error(ex.getMessage());

        //如果异常信息里包含Duplicate entry
        //contains：字符串中包含某段字符串
        if (ex.getMessage().contains("Duplicate entry")){
            String[]split = ex.getMessage().split(" ");
            String msg = split[2] + "已经存在";
            return Result.failed(msg);
        }
        return Result.failed("未知错误");
    }

    /**
     * 异常处理方法
     * 处理自定义异常
     * @param ex
     * @return
     */
    @ExceptionHandler(CustomException.class)
    public Result<?> exceptionHandler(CustomException ex){
        log.error(ex.getMessage());

        return Result.failed(ex.getMessage());
    }
}
